v3.23.1
Loss And Loss Adjustment Expense Reserves (Schedule Of Financial Guarantees And Related Claim Liability) (Detail)
$ in Millions
 3 Months Ended 12 Months Ended
Mar. 31, 2023
USD ($)
issue
policy
Dec. 31, 2022
USD ($)
issue
policy
Loss And Loss Adjustment Expense Reserves [Line Items]    
Number of policies | policy 142 161
Number of issues | issue [1] 95 99
Remaining weighted average contract period (in years) 6 years 4 months 24 days 6 years 4 months 24 days
Principal [2] $ 2,939 $ 3,185
Interest [2] 2,323 2,508
Total [2] 5,262 5,693
Gross claim liability [3] 591 677
Less: Gross potential recoveries [4] 152 198
Discount, net [5] 156 179
Net claim liability (recoverable) 283 300
Unearned premium revenue 19 20
Reinsurance recoverable on paid and unpaid losses [6] $ 3 $ 10
Caution List Low [Member]    
Loss And Loss Adjustment Expense Reserves [Line Items]    
Number of policies | policy 41 57
Number of issues | issue [1] 15 17
Remaining weighted average contract period (in years) 5 years 9 months 18 days 5 years 8 months 12 days
Principal [2] $ 1,496 $ 1,723
Interest [2] 1,751 1,905
Total [2] 3,247 3,628
Gross claim liability [3] 0 0
Less: Gross potential recoveries [4] 0 0
Discount, net [5] 0 0
Net claim liability (recoverable) 0 0
Unearned premium revenue $ 10 $ 11
Caution List Medium [Member]    
Loss And Loss Adjustment Expense Reserves [Line Items]    
Number of policies | policy 1 3
Number of issues | issue [1] 1 2
Remaining weighted average contract period (in years) 9 months 18 days 2 years 4 months 24 days
Principal [2] $ 2 $ 4
Interest [2] 0 1
Total [2] 2 5
Gross claim liability [3] 0 0
Less: Gross potential recoveries [4] 0 0
Discount, net [5] 0 0
Net claim liability (recoverable) 0 0
Unearned premium revenue $ 0 $ 0
Caution List High [Member]    
Loss And Loss Adjustment Expense Reserves [Line Items]    
Number of policies | policy 0 0
Number of issues | issue [1] 0 0
Principal [2] $ 0 $ 0
Interest [2] 0 0
Total [2] 0 0
Gross claim liability [3] 0 0
Less: Gross potential recoveries [4] 0 0
Discount, net [5] 0 0
Net claim liability (recoverable) 0 0
Unearned premium revenue $ 0 $ 0
Classified List [Member]    
Loss And Loss Adjustment Expense Reserves [Line Items]    
Number of policies | policy 100 101
Number of issues | issue [1] 79 80
Remaining weighted average contract period (in years) 7 years 7 years 2 months 12 days
Principal [2] $ 1,441 $ 1,458
Interest [2] 572 602
Total [2] 2,013 2,060
Gross claim liability [3] 591 677
Less: Gross potential recoveries [4] 152 198
Discount, net [5] 156 179
Net claim liability (recoverable) 283 300
Unearned premium revenue $ 9 $ 9
[1] An “issue” represents the aggregate of financial guarantee policies that share the same revenue source for purposes of making debt service payments on the insured debt.
[2] Represents contractual principal and interest payments due by the issuer of the obligations insured by MBIA.
[3] The gross claim liability with respect to Puerto Rico exposures are net of expected recoveries for policies in a net payable position.
[4] Gross potential recoveries with respect to certain Puerto Rico exposures are net of the claim liability for policies in a net recoverable position.
[5] Represents discount related to Gross Claim Liability and Gross Potential Recoveries.
[6] Included in “Other assets” on the Company’s consolidated balance sheets.